{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270471",
    "entityType": "User",
    "nonce": "0x9094622d9ba12a9704916ebe7ac72fe6b0f0112ff1e50841201c738b03bd2cb8",
    "signature": "0x539905653a9c9d4dd6ec9d77d5211fcc18c8d19e5ef7645960a735b18804ac893434e872566b66ee0786d363e7cf902bade6e020de65b31f8471f93789994a391b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}